This high-quality mounting ring will complement any vessel sink with a rounded bottom. Measuring 3 inches in diameter by 3/8 inches high, the ring is to be installed between the vessel sink''s bottom and the top of the counter. Constructed of solid brass for strength and durability. The benefits of the mounting include added stability and a little extra room to clean under the sink. While not necessary, we certainly recommend them! Let your style flow and enjoy Novatto''s Limited Lifetime Warranty. Supreme packaging and double boxing ensure damage-free delivery.